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PDF NCP5623B Data sheet ( Hoja de datos )
| Número de pieza | NCP5623B | |
| Descripción | Triple Output I2C Controlled RGB LED Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCP5623B
Triple Output I2C Controlled
RGB LED Driver
The NCP5623B mixed analog circuit is a triple output LED driver
dedicated to the RGB illumination or backlight LCD display.
The built−in DC/DC converter is based on a high efficient charge
pump structure with operating mode 1x and 2x. It provides a 94% peak
efficiency. The tiny package makes the device suitable for room
limited portable applications.
Features
• 2.7 to 5.5 V Input Voltage Range
• RGB Function Fully Supported
• Programmable Integrated Gradual Dimming
• 90 mA Output Current Capability
• 94% Peak Efficiency
• Built−in Short Circuit Protection
• Provides Three Independent LED Drives
• Support I2C Protocol
• Embedded OVP / Open Load Protection
• This is a Pb−Free Device
Typical Applications
• Multicolor Illuminations
• Portable Back Light
• Digital Cellular Phone Camera Photo Flash
• LCD and Key Board Simultaneous Drive
+Vcc
+Vbat
1 mF/6.3 V
MCU
C1
GND
SDA
I2C Port SCL
11
7
9
6
GND
GND
GND
Rset 8
62 k
CFLY
220 nF
1 12
C1P
Vbat
SDA
SCL
C1N 10
Vout
LED3 3
LED2 4
AGND
IREF
LED1 5
GND 2
C2
1 mF/10 V
GND
D3
D2
D1
NCP5623B
U1
GND
Figure 1. Typical Multiple White LED Driver
www.onsemi.com
LLGA12
MU SUFFIX
CASE 513AA
1
PIN ASSIGNMENT
2 C1P C1N 11
GND
1
Vbat
LED3
VOUT
LED2
SCL
LED1
AGND
EXPAD
IREF
SDA
6 (Top View) 7
MARKING DIAGRAM
1
GVMG
G
GV = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping†
NCP5623BMUTBG LLGA12 3000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2015
February, 2015 − Rev. 3
1
Publication Order Number:
NCP5623B/D
1 page  
NCP5623B
POWER SUPPLY SECTION:
(Typical values are referenced to TA = +25°C, Min & Max values are referenced −40°C to +85°C ambient temperature, unless otherwise
noted), operating conditions 2.85 V < Vbat < 5.5 V, unless otherwise noted.
Pin Symbol
Rating
Min Typ Max Unit
11 Vbat Power Supply
10 Iout Continuous DC current in the load, PWM = 100%
@ Vf = 3.4 V, Vbat = 3.0 V
@ Vf = 3.4 V, 3.3 V < Vbat < 5.5 V
10 Isch Continuous Output Short Circuit Current
2.85 V < Vbat < 4.2 V
2.7 5.5 V
mA
55
75
45 90 mA
10
Vout
Output Voltage Compliance (OVP)
4.4 5.7 V
10 Tstart DC/DC Start time (Cout = 1 mF)
3.0 V < Vbat = nominal < 5.5 V
From last acknowledgement bit to full load operation
150 ms
10 Istdb Stand By Current
3.0 V ≤ Vbat ≤ 4.2 V, Iout = 0 mA
10 Iop Operating Current,
@Iout = 0 mA, 3.0 V ≤ Vbat ≤ 4.2 V
0.8 1.0 mA
350 mA
3,4,5
ITOL RGB Output Current Tolerance
@Vbat = 3.6 V, ILED = 10 mA
−25°C < Ta < 85°C
±3 %
3,4,5
IMATCH
Fpwr
RGB Output Current LED Matching
@Vbat = 3.6 V, ILED = 5.0 mA
Charge Pump Operating Frequency
−40°C < Ta < 85°C
±0.5 %
0.8 1 1.2 MHz
EPWR
Efficiency @ Vbat = 3.6 V
− LED1 to LED3 = 5 mA, Vf = 2.8 V (Total = 15 mA)
− LED1 to LED3 = 20 mA, Vf = 3.2 V (Total = 60 mA)
%
94.2
92.3
www.onsemi.com
5
5 Page 
NCP5623B
+Vcc
MCU
I2C Port
GND
+Vbat
1 mF/6.3 V
C1
GND
11
SDA
SCL
7
9
6
GND
GND
Rset
62 k
8
CFLY
220 nF
1 12
C1P
Vbat
SDA
SCL
C1N 10
Vout
LED3 3
LED2 4
AGND
IREF
LED1 5
GND 2
C2
1 mF/10 V
GND
D3
D2
D1
NCP5623B
U1
GND
Figure 6. Basic RGB Application
www.onsemi.com
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet NCP5623B.PDF ] | |
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